Finding Earth 2.0
HD 66428 · G8 IV (+ G)

HD 66428 b

Rank #1361 of the ranked catalogue · Discovered by Radial Velocity in 2005

HZ 0%measured

0.102

Earth-2.0 index

0.306

Earth Similarity Index

0%

Habitable-zone probability

12.40 R⊕

Radius

Planet

Mass3478.950 M⊕measured
Bulk density10.000 g/cm³
Orbital period2269.8173 days
Semi-major axis3.39500 au
Eccentricity0.471
Incident flux0.108 S⊕
Equilibrium temperature145.8 K
Maximum angular separation63.72 masReflected-light contrast 2.32e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 66428
Spectral typeG8 IV (+ G)
Effective temperature5716 K
Radius1.130 R☉
Mass1.010 M☉
Distance53.3 pc / 173.8 ly
DiscoveryRadial Velocity, 2005